Answer:
The speed of the airplane is approximately 770 km/h (214 m/s).
Explanation:
Speed = 
Distance = 3080 km
Time = 4 hours
speed = 
= 770
speed = 770 km/h
The speed of the airplane is 770 km/h.
OR
Distance = 3080 km
But,
1 000 m = 1 km
3080 km = 3080000 m
distance = 3080000 m
Time = 4 hours
60 seconds = 1 minute
60 minutes = 1 hour
Thus, 4 hours = 60 x 60 x 4
= 14400 seconds
Therefore,
speed = 
= 213.8889
speed ≅ 214 m/s
The speed of the airplane is approximately 214 m/s.
If they did not go in the war their country would parish
Answer:
Ronald McNair was nationally recognized for his work in laser physics and was one of the thirty-five applicants selected by NASA from a pool of ten thousand. In 1984, McNair became the second African-American to make a flight into space. He was a mission specialist on the space shuttle Challenger.
Explanation:
The correct answer is B) German-American schools, churches, and magazines largely abandoned the use of the German language.
One effect that World War I had on German Americans was that German-American schools, churches, and magazines largely abandoned the use of the German language.
Without a doubt, the German community in the United States suffered from anti-German sentiments during and after World War 1. US citizens started to demand the ban of the German language in the country. This meant no more German-speaking in schools or churches. Many German sites such as theaters were closed. And people also demanded to stop any kind of publication in German, magazine or newspaper.
